Finding the Fourth Proportional to 1,368.16, 2,053.15 and 675.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,368.16 : 2,053.15 = 675.30 : x
2. Step 2: Convert to fraction form
   1,368.16/2,053.15 = 675.30/x
3. Step 3: Cross multiply
   1,368.16x = 2,053.15 × 675.30
4. Step 4: Simplify right side
   1,368.16x = 1,386,498.21
5. Step 5: Solve for x
   x = 1,386,498.21/1,368.16
6. Step 6: Final answer
   x = 1,013.41